<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<a href="/numbers/add" >添加用户</a>
 <div style="display: flex; justify-content: center;"> {# 居中 #}
            <nav aria-label="Page navigation example" style="margin: 10px">
                <ul class="pagination">
                    {{ page_nav_string }}
                </ul>
            </nav>
        </div>
</body>
</html>